Gun sight



SENER HOOm LBR W. VAVER GUN SIGHT April 26, 193s.

Filed May e, 1955 f. E I V//V/ i Patented Apr. 26, 1938 UNITED STATES Search Room PATENT OFFICE Application May 6, 1935, Seria-l No. 19,935

8 Claims.

This invention relates to improvements in sights for guns, rifles and firearms.

One of the objects of my invention is to provide a sight for firearms which is characterized by marked simplicity of construction and operation, and the elements of which possess novel features of construction, arrangement and provision which materially increase its effectiveness and use.

Among the novel features or elements of my sight is an improved sighting device the use of which will aiiord a more clear or sharply defined image of the object aimed at. Increased image definition is attained by the use of a very thin aperture disc which is so mounted in the bore of the sighting device as to be shielded from most of the interfering light rays. Peep-sights which are made from a single piece with a bore drilled in from each end to secure a thin separating apertured wall are not so commercially possible to manufacture as to produce the aperture of the desired precision as is possible to produce and secure with an aperture disc made from a separate piece of very thin metal.

Another object of my invention is to provide the sighting device with an interchangeable, removably mounted, aperture disc so that discs having apertures of diierent diameters may be readily substituted one for the other.

Another object of my invention resides in the provision of a firearm sight eye-piece the bore of which is provided with an orice which is composed of a multiple of comparatively small planes each disposed angularly to the adjacent plane; the orice decreasing in diameter inwardly of the bore or which orice may be progressively decreased in diameter as by a series of circular steps decreasing in diameter progressively inwardly of the sight bore to thereby reduce to a minimum or dissipate reflected interfering light rays to facilitate visibility and afford sharper definition of the image of the object viewed therethrough.

A further object of the invention is found in the provision of a sight eye-piece having a removably mounted aperture disc and a removably mounted aperture disc retainer, which retainer and aperture disc are adapted to be unscrewed from the eye-piece and screw-mounted into the peep-holder or block of a standard sight for use as a small eye-piece to afford unobstructed vision, as for instance, on a hunting rifle.

A still further object of the invention resides in the provision of a rearm sight having an interchangeable plate with indicia thereon which permit the adjustment of the sight as to elevation in accordance with such indicia tg, correct points of elevation corresponding with predetermined ranges for a specific or particular type and character of ammunition or bullet.

Still another object of my invention is found in the provision of means including a stud and a tightening screw which may be secured to the range plate for definitely locating the range plate on the sight.

Still another object of my invention is to provide a novel elevation adjusting and locking handle which serves as a handle for raising or lowering the sight carrier and thereafter locking it in the desired adjusted range position; such adjusting and locking operations being performed by one hand of the operator.

With the above and other objects in view, my invention consists in the novel combination, construction and arrangement of the parts and members shown in preferred embodiment in the attached drawing, described in the following specifications and particularly pointed out in the appended claims.

Referring to the drawing:

Fig. 1 is a side elevation of a gun sight embodying my invention;

Fig. 2 is a vertical section taken on line 2-2 of Fig. 1;

Fig. 3 is a cross section taken on line 3 3 of Fig. 2 showing the operating and retaining member for adjusting the sight as to elevation;

Fig. 4 is an enlarged vertical section taken on line 4-4 of Fig. 2 showing the improved sighting eye-piece, and

Figs. 5 and 6 are enlarged perspective views of the aperture discs.

As shown in the illustrations, the sight comprises an adapter block I of any suitable form which is adapted for attachment to the side of the firearm barrel II and on which block is supported the sight frame I2 by screws I3.

The sight frame I2 is grooved, as at I4, to receive the vertical leg ISA of an L-shaped sight carrier I5.

'Ijhe horizontal portion or leg 15B of the sight carrier is provided with a depressed channeled portion IC for the slidably mounted peep-sight block I6, a lateral extension IGA of which is centrally and longitudinally slotted, as at IEB. The peep-sight block I6 is slidably adjustable as to windage within the channel IBC and is adapted to be securely retained in adjusted position by a screw I'l mounted in the lateral portion ISB and extending for adjustable screw connection within the slot IBB with the head thereof in engagement With the upper face of the extension IBA.

The block I6 is provided with a threaded bore IGC to receive a sighting device or peep-sight I8.

To facilitate and guide the operator in Windage adjustment the extension IIA may be provided with an in-dicator line which is adapted to register with suitable indications on the horizontal portion |53.

The sighting device or peep-sight I8 is formed with a comparatively enlarged eye-piece I8A having an exteriorly threaded end connection I 8B into the slidable block I6 and is provided With a sight bore I8C which is enlarged inwardly, for substantially half of its length and threaded as at IBD to receive an aperture disc retainer I9.

'Ihe aperture disc retainer I9 is provided with a sight bore I9^- adapted to optically register with the bore I8C of the eye-piece IBA.

The outer portion or orifice I9C of the bore I9A of the retainer I9 is formed with a multiple of small planes each disposed angularly to an adjacent plane, or progressively decreased in diameter as by a series of circular steps ISB which decrease in diameter progressively inwardly of the sight bore I9A and which act to reduce or dissipate to a minimum, by refraction, interfering light rays to thus afford a sharper or clearer definition of the image of the viewed object.

To further enhance the visibility and definition of the image of the sighted object, I provide an aperture disc 20 which is made from a very thin material, as for instance steel of a thickness of .005 or .007 of an inch, and is provided with an aperture 2|)A in optical alignment or register with the axes of the sight bores I8C and ISA.

The aperture disc 20 is removably mounted within the eye-piece I8 between the inner end of the retainer I9 and the shoulder formed at the enlarged portion of the sight bore, or the inner end of the retainer I9 may be formed with a small annular groove to receive the aperture disc. Being removable, the aperture disc may be interchanged with any one of several other similar aperture discs of different size apertures, thus providing a desirable andefcient sight eye-piece.

The exterior connection threads of the retainer I9 are such that the retainer I9 and aperture disc 20 may be readily removed from the eyepiece I8 and remounted in the sight block I6 for use as a small sighting eye-piece.

To conveniently and quickly permit the vertical adjustment of the sight as to elevation, the sight carrier I5 is slidably movable, with its vertical leg I5A within the stationary frame I2, by means of a combined handle and locking device which includes a threaded member or screw 2| screw-mounted in leg I5A and having a head portion 2 IA. A coil spring 23 is positioned about the threaded member 2| between the head 2|A and a washer 22 which is loosely mounted on the member 2|.

The washer 22 is formed with a fitted portion 22A having a pair of parallel sides slidably interiitting between the channelled portion I4A of the sight frame I2. The cylindrical portion 22B of the Washer is adapted to be pressed by the coil spring 23 upon the tightening of the head 2|A to frictionally retain or lock the sight carrier I5 in proper adjusted position.

The vertical leg of the sight carrier I5 is formed with a vertical depression IBD extending longitudinally thereof and adapted to receive therein the range plate 24 which is securely held in position by a screw 25 extending through an elongated slot 24A in the upper part of the range plate into threaded connection Within a small cylindrical stud 25A disposed on the back of the range plate and positioned in a recess or hole in the leg I5A of the carrier I5. This range plate 24 is provided with indicia 24B which permits the adjustment of the sight, with reference to an indicator 26 (which, in the present instance, is a part of the frame I2) as to correct elevations corresponding with predetermined ranges for a specific or particular type and character of a bullet, the indicia preferably indicating the range of the targets in terms of yards. A specific range plate may be furnished for each specific type or character of ammunition, so that when the ammunition is changed it is only necessary to interchange .the used range plate for a range plate calibrated for the changed ammunition. The precise position of the range plate may be corrected and adjusted by loosening the screw 25.

When the sight is attached to a riiie, the correct mounting or position of the peep-sight in relation to that rifle is zeroed once. This is done by adjusting the small zeroing screw 21. The interchangeable range plate is then adjusted to zero position by loosening the screw 25 in the stud 25A, to permit vertical adjustment of the range plate. When the range plate for the particular ammunition has once been zeroed, the stud 25A is securely aflixed to the range plate by tightening of the screw 25. To change one range plate for another, when changing ammunition, the head ZIA is loosened and the sight staff or carrier leg I5A removed from its support by upward movement. The used range plate 24, screw 25, and stud 25A may then be removed as a unit and replaced by a similar unit plate which has previously been corrected for the ammunition then to be used. The removed range plate can thereafter always be properly reinserted into predetermined zeroed position, for use with the particular ammunition for which it was previously calibrated, by replacing with its attached stud in the hole provided for it in the vertical leg I5A of the carrier.

It is obvious that various changes or modifications may be made in the details of construction or arrangement in the sight as here shown in preferred embodiment without departing from the spirit of the invention as defined in the appended claims.

I claim:

1. In a firearm rear sight, sighting means, a support secured to the firearm, a movable carrier for said sighting means slidably mounted in said support, said support being provided with a slot, a handle comprising a threaded member extending through said slot into said carrier and having an enlarged head, a loosely mounted washer on said threaded member, and a spring interposed between said Washer and said head, said washer having a portion intertting within said slot of said support to retain said washer against rotation and said washer having a portion extending beyond parallel margins of said slot and adapted upon rotation of said head to be pressed by said spring into frictional engagement with the face of said support to thereby retain the sight in adjusted elevation position.

2. A firearm sight, including, sighting means, a support fixed to the iirearm, a carrier movably mounted on said support, said sighting means being movably mounted on said carrier and adjustable relatively to said carrier as to windage, an interchangeable plate removably mounted on 33. GOMETRlC/ll INSTRUMENTS.

said carrier, said plate having indicia thereon indicating correct elevations of the sighting means for deiinite ranges for a specic type and character of ammunition, means for adjustably retaining said plate on said carrier, said plate having an elongated slot at one end thereof, said support having a face extending over a portion of said carrier and said plate and having a slot therein, a handle adapted to raise and lower said carrier to adjust said sighting meansas to elevation in accordance with the indicia on said plate, said handle comprising a portion extending through said slot in said support and through said slot in said plate for rotatable connection with the carrier, a washer slidably mounted on said handle portion, said washer having a portion intertting within parallel margins of the slot of said support to guide said washer, said washer also having a portion thereof extending beyond the parallel margins of the slot of said support, an enlarged head on said handle portion, and a spring interposed between said washer and said head adapted upon rotation of said head to exert pressure upon the washer to form a frictional engagement of the washer with said support to retain the sight in adjusted elevation position.

3. In a firearm sight, sighting means, a vertically adjustable carrier for said sighting means, an interchangeable plate removably mounted on vsaid carrier, said plate having indicia thereon indicating correct elevations of the sighting means for denite ranges for a specific type and character of bullet, and means for definitely locating said range-indicating plate relatively to the sighting means, said range plate locating means being adjustable relatively to said range plate and adapted to be secured into iixed connection with said range plate.

4. In a iirearm sight including sighting means, a carrier for said sighting means movably mounted on the iirearm, a plate removably mounted on said carrier, said plate having indicia thereon indicating correct elevations of the sighting means for definite ranges for a specic type and character of bullet, said carrier having a recess therein, and means for locating said Search iiooti range-indicating plate relatively to said sighting means comprising a stud and a screw for securing said stud to said range-indicating plate, said stud being adjustable longitudinally of said rangeindicating plate and adapted to be positioned in said recess.

5. 'Ihe combination in a iirearm rear sight, of sighting means, a removable interchangeable plate removably mounted on the sight, said plate having indicia thereon whereby the sighting means may be adjusted to variable target conditions, said plate being adjustable relatively to the sighting means, and locating means for said plate adapted to be secured to said plate after adjustment of said plate and thereafter being removable from the sight as a unit with said plate, said locating means and plate being reinsertable as a unit in the sight in a fixed predetermined position relatively to the sighting means.

6. The combination in a firearm sight as embodied in claim 5, said sight including a recess, and said locating means comprising a stud adjustable relatively to said plate, and means for securing said stud to said plate, said recess in the sight being adapted to receive the stud to thereby locate said plate relatively to the sighting means.

7. A rearm sight having a sighting bore, said bore having an oriiice the surface of which is of general frusto-conical form but composed of a plurality of comparatively small circular steps progressively decreasing in diameter inwardly of the sight bore.

8. In a iirearm rear sight, a bored tubular sighting member having a peripherally iianged circular wall portion at the sighting end of a diameter greater than the adjacent bored tubular portion constituting a light shield, a tubular peep sight removably mounted in said sighting member in axial alignment with the bore of said sighting member, a thin aperture disc removably mounted at the inner end of said peep sight, the outer end of said peep sight having an orilice formed by a series of circular steps of progressively increasing diameter outwardly.

WALTER VAVER. 

